Position rack in center of oven and preheat to 275°F. Line large baking sheet with parchment paper. Using cookie cutter or glass as aid, trace six 2 1/2-inch circles on parchment, spacing 2 to 3 inches apart; turn parchment over.,Using electric mixer, beat egg whites in large bowl until soft peaks begin to form. With mixer running, gradually add 6 tablespoons sugar. Whisk 2 tablespoons sugar and cornstarch in small bowl. With mixer running, gradually beat sugar-cornstarch mixture into meringue. Continue beating meringue until stiff glossy peaks form. Beat in vinegar and orange-flower water. Divide meringue among parchment paper circles, spreading to fill completely (meringues will be about 1 1/2 inches high). Using back of spoon, form slight depression in center of each meringue.,______,Puree all ingredients in blender until smooth. Transfer to bowl. DO AHEAD:,Mix strawberries, 1 tablespoon sugar, and orange-flower water in medium bowl. Let stand at room temperature until sugar dissolves and juices form, stirring occasionally, about 20 minutes.,Using electric mixer, beat chilled cream, vanilla, and remaining 1 teaspoon sugar in another medium bowl until soft peaks form. DO AHEAD:,Spoon small dollop of whipped cream in center of each plate. Place 1 meringue atop whipped cream on each plate, pressing lightly to anchor meringue. Spoon generous dollop of whipped cream in center of each meringue. Spoon coulis around meringues; top with sliced strawberry mixture.